Photochemical

/ˌfoʊtəˈkɛmɪkəl/

Meaning & Definition

adjective

Relating to the chemical effects of light.

The photochemical reactions in plants are essential for photosynthesis.

Involving the use of light to induce a chemical reaction.

Photochemical smog is formed when sunlight reacts with pollutants in the atmosphere.

Referring to processes that are influenced by the absorption of light.

Scientists study photochemical processes to understand how light affects chemical compounds.

From 'photo-' meaning light + 'chemical' relating to chemistry.

photochemical reaction

A chemical reaction triggered by the absorption of light.

photochemical smog

Air pollution resulting from chemical reactions in the presence of sunlight.

photosynthesis

The process by which green plants use sunlight to synthesize foods.

photoreactive

Substances that change when exposed to light.